In all these respects art is and remains for us, on the side, of its highest possibilities, a thing of the past. Herein it has further lost its genuine truth and life, and is rather transported to our world of _ideas_ than is able to maintain its former necessity and its superior place in reality. What is now stimulated in us by works of art is, in addition to the fact of immediate enjoyment, our judgment. In other words we subject the content, and the means of presentation of the work of art, and the suitability and unsuitability of both, to the contemplation of our thought. A _science_ of art is therefore a far more urgent necessity in our own days than in times in which art as art sufficed by itself alone to give complete satisfaction. We are invited by art to contemplate it reflectively, not, that is to say, with the object of recreating such art[12], but in order to ascertain scientifically its nature. In doing our best to accept such an invitation we are confronted with the objection already adverted to, that even assuming that art is a subject adapted for philosophical investigation in a general way, yet it unquestionably is not so adapted to the systematic procedure of science. Such an objection, however, implies to start with the false notion that we can have a philosophical inquiry which is at the same time unscientific. In reply to such a point I can only here state summarily my opinion, that whatever ideas other people may have of philosophy and philosophizing, I myself conceive philosophical inquiry of any sort or kind to be inseparable from the methods of science. The function of philosophy is to examine subject-matter in the light of the principle of necessity, not, it is true, merely in accordance with its subjective[13] necessity or external co-ordination, classification, and so forth; it has rather to unfold and demonstrate the object under review out of the necessity of its own intimate nature. Until this essential process is made explicit the scientific quality of such an inquiry is absent. In so far, however, as the objective necessity of an object subsists essentially in its logical and metaphysical nature the isolated examination of art may in such a case, at any rate, or rather inevitably, must be carried forward with a certain relaxation of scientific stringency. For art is based upon many assumptions, part of which relate to its content, part to its material or conceptive[14] medium, in virtue of which art is never far from the borders of contingency and caprice. Consequently it is only relatively to the essential and ideal progression of its content and its means of expression that we are able to recall with advantage the formative principle of its necessity[15].